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The Single UNIX &reg; Specification, Version 2<br>
Copyright &copy; 1997 The Open Group

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<h4><a name = "tag_001_014_947">&nbsp;</a>NAME</h4><blockquote>
iconv - codeset conversion
</blockquote><h4><a name = "tag_001_014_948">&nbsp;</a>SYNOPSIS</h4><blockquote>
<pre><code>

iconv -f <i>fromcode</i> -t <i>tocode</i><b> [</b><i>file</i>...<b>]</b>
</code>
</pre>
</blockquote><h4><a name = "tag_001_014_949">&nbsp;</a>DESCRIPTION</h4><blockquote>
The
<i>iconv</i>
utility converts the encoding of characters in
<i>file</i>
from one codeset to another
and writes the results to standard output.
<p>
Character encodings in either codeset may include single-byte values
(for example, for the ISO 8859-1:1987 standard characters) or
multi-byte values (for example,
for certain characters in the ISO 6937:1983 standard).
The results of
specifying invalid characters in the input stream
(either those that are not valid members of the
<i>fromcode</i>
or those that have no corresponding value in
<i>tocode</i>)
are specified in the system documentation.
</blockquote><h4><a name = "tag_001_014_950">&nbsp;</a>OPTIONS</h4><blockquote>
The
<i>iconv</i>
utility supports the <b>XBD</b> specification, <a href="../xbd/utilconv.html#usg"><b>Utility Syntax Guidelines</b>&nbsp;</a> .
The following options are supported:
<dl compact>

<dt><b>-f&nbsp;</b><i>fromcode</i>
<dd>
Identify the codeset of the input file.
Valid values for
<i>fromcode</i>
are specified in the system documentation.

<dt><b>-t&nbsp;</b><i>tocode</i>
<dd>
Identify the codeset to be used for the output file.
Valid values for
<i>tocode</i>
are specified in the system documentation.

</dl>
</blockquote><h4><a name = "tag_001_014_951">&nbsp;</a>OPERANDS</h4><blockquote>
The following operands are supported:
<dl compact>

<dt><i>file</i><dd>A pathname of the input file to be translated.
If
<i>file</i>
is omitted, the standard input is used.

</dl>
</blockquote><h4><a name = "tag_001_014_952">&nbsp;</a>STDIN</h4><blockquote>
The standard input is used only if the
<i>file</i>
operand is omitted.
</blockquote><h4><a name = "tag_001_014_953">&nbsp;</a>INPUT FILES</h4><blockquote>
The input file is a text file.
</blockquote><h4><a name = "tag_001_014_954">&nbsp;</a>ENVIRONMENT VARIABLES</h4><blockquote>
The following environment variables affect the execution of
<i>iconv</i>:
<dl compact>

<dt><i>LANG</i><dd>Provide a default value for the internationalisation variables
that are unset or null.
If
<i>LANG</i>
is unset or null, the corresponding value from the
implementation-dependent default locale will be used.
If any of the internationalisation variables contains an invalid setting, the
utility will behave as if none of the variables had been defined.

<dt><i>LC_ALL</i><dd>
If set to a non-empty string value,
override the values of all the other internationalisation variables.

<dt><i>LC_CTYPE</i><dd>
Determine the
locale for the interpretation of sequences of bytes of text data as
characters (for example, single- as opposed to multi-byte characters
in arguments).
During translation of the file, this variable is superseded
by the use of the
<i>fromcode</i>
option-argument.


<dt><i>LC_MESSAGES</i><dd>
Determine the locale that should be used to affect
the format and contents of diagnostic
messages written to standard error.

<dt><i>NLSPATH</i><dd>
Determine the location of message catalogues
for the processing of
<i>LC_MESSAGES .
</i>
</dl>
</blockquote><h4><a name = "tag_001_014_955">&nbsp;</a>ASYNCHRONOUS EVENTS</h4><blockquote>
Default.
</blockquote><h4><a name = "tag_001_014_956">&nbsp;</a>STDOUT</h4><blockquote>
The standard output is a text file containing the translated data.
</blockquote><h4><a name = "tag_001_014_957">&nbsp;</a>STDERR</h4><blockquote>
Used only for diagnostic messages.
</blockquote><h4><a name = "tag_001_014_958">&nbsp;</a>OUTPUT FILES</h4><blockquote>
None.
</blockquote><h4><a name = "tag_001_014_959">&nbsp;</a>EXTENDED DESCRIPTION</h4><blockquote>
None.
</blockquote><h4><a name = "tag_001_014_960">&nbsp;</a>EXIT STATUS</h4><blockquote>
The following exit values are returned:
<dl compact>

<dt>0<dd>Successful completion.

<dt>&gt;0<dd>An error occurred.

</dl>
</blockquote><h4><a name = "tag_001_014_961">&nbsp;</a>CONSEQUENCES OF ERRORS</h4><blockquote>
Default.
</blockquote><h4><a name = "tag_001_014_962">&nbsp;</a>APPLICATION USAGE</h4><blockquote>
None.
</blockquote><h4><a name = "tag_001_014_963">&nbsp;</a>EXAMPLES</h4><blockquote>
The following example converts the contents of file
<b>mail.x400</b>
from the ISO 6937:1983 standard codeset to the ISO 8859-1:1987 standard codeset,
and stores the results in file
<b>mail.local</b>:
<pre>
<code>
iconv -f IS6937 -t IS8859 mail.x400 &gt; mail.local
</code>
</pre>
</blockquote><h4><a name = "tag_001_014_964">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>
None.
</blockquote><h4><a name = "tag_001_014_965">&nbsp;</a>SEE ALSO</h4><blockquote>
<i><a href="gencat.html">gencat</a></i>.
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UNIX &reg; is a registered Trademark of The Open Group.<br>
Copyright &copy; 1997 The Open Group
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